$218.45
6 in stock
Online inventory may differ from in-store availability.
Quick turnaround so you get your gear sooner.
Trusted checkout with industry-standard protection.
Keeping Traditions Alive Since 1953
Secure Transactions provided with 
The JP Enterprises Gen 2 Silent Captured Spring is one of those upgrades you feel and hear the second you send the first round. It replaces your standard buffer and spring with a single captured assembly that rides on a machined guide rod, cutting out the friction and vibration that give conventional setups that gritty "spoon over a cheese grater" rattle. What you're left with is smoother, quieter cycling and a noticeably calmer recoil impulse, which means less sight movement and faster follow-ups. This is the H2 heavy version, built around JP's LMOS buffer using two tungsten weights plus one steel weight for a heavier reciprocating mass that plays especially well with short-barreled, suppressed, and gassy setups.
The heavier H2 mass helps tame bolt bounce and settle the gun down under harder gas conditions, which is exactly why it gets recommended for SBRs, suppressed rifles, piston guns, and select-fire builds. The aluminum guide rod keeps overall weight in check, and the whole unit pulls apart in seconds for cleaning or tuning. It fits carbine-length receiver extensions right out of the box, and the included spacer lets it work in rifle-length fixed-stock tubes too.
The real magic of this builder kit is the alternate spring pack. It ships with five color-coded springs of varying rates so you can fine-tune cycling to your specific rifle, which matters most on guns without an adjustable gas block. The rule of thumb is simple: if the buffer bottoms out hard, go heavier; if the bolt won't lock back reliably on an empty mag, go lighter. Swapping springs is a quick disassembly with a 3mm hex key, and JP even tosses in a spare guide rod retainer screw.
One thing worth knowing before you order: the SCS needs the guide rod to pass into the bolt carrier during cycling, so it won't work with older Primary Weapon Systems (PWS) carriers or a handful of other proprietary carrier designs. On a standard mil-spec carrier group, it's a straightforward drop-in that turns a rattly AR into a smooth-running machine.
Yes. It drops right into carbine-length receiver extensions as-is, and the kit includes a spacer that lets it run in longer rifle-length fixed-stock tubes. That flexibility covers the vast majority of AR-15 builds out there.
The H2 uses a heavier reciprocating mass built from two tungsten weights and one steel weight instead of all steel. That extra mass helps control bolt bounce and smooth out cycling on gassier setups like short-barreled and suppressed rifles, which is exactly where JP recommends it.
The five color-coded springs let you tune the SCS to your specific rifle so it cycles cleanly and locks back reliably. If the buffer bottoms out hard you step up to a heavier spring, and if it won't lock back on an empty mag you drop to a lighter one. It's especially handy on builds without an adjustable gas block.
It won't function with older Primary Weapon Systems (PWS) carriers or certain other proprietary carrier designs, because the guide rod has to pass into the carrier as the gun cycles. On a standard mil-spec bolt carrier group it's a simple drop-in with no permanent modifications.
| UPC | 812872024028 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | JPSCS2-15K-H2 |
You must be logged in to post a review.
Reviews
There are no reviews yet.